Just because an artistic practice isn't something that can be utilised on a wide scale doesn't mean it's a curiosity. If you're working on something that's specific to a particular place, like three glaciers in Iceland, it might well be the right approach to use something that isn't going to make sense in many other contexts. Besides, with conceptual art it often isn't appropriate to keep repeating something. So no, I don't think records made from ice is something that you're going to see in the practice of many artists, but that doesn't mean this work should be dismissed as a curiosity.